unbelievable
Pronunciation:
/ˌʌnbəˈliːvəbl̩/adjective
Definitions
Not to be believed.
Incredible; so surprising it is almost unable to believe.
Example: The most unbelievable thing happened to me today!
Implausible or improbable.
Example: His excuse seems rather unbelievable.
Synonyms:improbableinfeasibleunlikelyAntonyms:feasiblelikelyplausibleprobable